Denso 5734 Spark Plug

High-Performance Denso Iridium Racing Spark Plug 5734

The Denso Iridium Racing spark plug 5734 is engineered for drivers seeking reliable ignition performance and durability. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability and ignition
• Full platinum ground electrode tip design for extended wear
• Slant ground configuration to optimize spark exposure
• Copper core center electrode for superior conductivity
• Nickel ground electrode core material for strength
• Pre-gap size of 0.6 mm for precise spark gap
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Hex size of 16.0 mm for standard installation tools
• Manufacturer heat range rating of 24 for balanced thermal performance

About the Denso Iridium Racing Product Line

The Iridium Racing line by Denso focuses on delivering spark plugs that combine advanced iridium technology with racing-grade materials. This product line is designed to provide consistent ignition under demanding conditions, making it suitable for performance vehicles requiring reliable secondary ignition components.

Technical Details and Performance

The Denso 5734 spark plug features a copper core center electrode with an iridium tip, which improves ignition efficiency and electrode longevity. The full platinum ground electrode tip enhances wear resistance, while the slant ground configuration optimizes spark exposure to the combustion chamber. With a pre-gap size of 0.6 mm and a flat seat design, this spark plug ensures a precise fit and consistent spark delivery. The 19 mm reach and 14 mm thread diameter make it compatible with a range of vehicle engines requiring these specifications.

Compatible Vehicles and Applications

This spark plug is suitable for vehicles that require a 14 mm thread diameter, 19 mm reach, and a heat range of 24. It is commonly used in performance-oriented models from various manufacturers, including popular makes and models that demand reliable secondary ignition components for optimal engine function.

• Improves ignition stability in high-performance engines
• Reduces misfires and rough idling issues
• Enhances throttle response and fuel efficiency
• Supports consistent combustion under racing or spirited driving conditions
• Helps maintain engine power and smooth acceleration

Installation Notes and Tips

When installing the Denso Iridium Racing spark plug 5734, ensure the engine is cool to prevent damage to the threads. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications, typically around 16.0 mm hex size. Verify the pre-gap size of 0.6 mm before installation to maintain optimal spark performance. Avoid over-tightening to prevent thread damage.

Quality Assurance and Warranty

Denso manufactures the 5734 spark plug to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Denso products generally come with manufacturer-backed quality assurance to support long-term use in compatible vehicles.